Marked Soulmates

Whenever someone turns 16, a mark will be imprinted onto their right ankle and it will stick to you for the rest of your life.
Marks have special meanings. Only two people in the entire world have the same exact mark. These two people are called "soulmates".
Everyone has their own soulmate, your soulmate could even be living in the opposite side of the globe from you or might even be your next door neighbor.
Marks are very unique. They can vary from all sorts of shapes or lines you could think of.
Many soulmates who eventually find each other will end up living...well, "happily ever after" you could call it.
However, not everyone ends up finding their soulmate. Some people end up falling in love with others of a different mark or giving up on the adventure for love. And well, the universe doesn't really approve of that.
So what happens when Paris Lester, a strong believer of love meets Kyle Matthews, a boy who grew up in a broken family, believing that love would never exist?